Home / 1,628.04-2,439.86-750.63

Finding the Fourth Proportional to 1,628.04, 2,439.86 and 750.63

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Solution

The fourth proportional to 1,628.04, 2,439.86 and 750.63 is: 1,124.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.04 : 2,439.86 = 750.63 : x
  2. Step 2: Convert to fraction form
    1,628.04/2,439.86 = 750.63/x
  3. Step 3: Cross multiply
    1,628.04x = 2,439.86 × 750.63
  4. Step 4: Simplify right side
    1,628.04x = 1,831,428.36
  5. Step 5: Solve for x
    x = 1,831,428.36/1,628.04
  6. Step 6: Final answer
    x = 1,124.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.